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Hello all,

Emission control light came on tonight and stayed on ? Any ideas, car is 2009 RS6 C6 V10 bi turbo

Many thanks
Neil

anything noticeable that coincides with the light? rough idle, lumpy throttle, underpowered?

best bet is to get a scan tool plugged in to find out what the ECU has recorded, from my experience i've had that when an o2 sensor bailed on me after a few WOT runs and when the secondary air injection flow is low. Both of these times the engine has continued to run ok.

Had it looked at today, ECL reset and no fault found on VCDS, my oil level sensor has packed up and needs a new one